Appleton's dictionary of machines, mechanics, engine-work, and engineering : illustrated with four thousand engravings on wood ; in two volumes (1873)
D. Appleton and Company · New York : D. Appleton and Co. · leaf 542
on. It consists of a hollow disk or cylinder, 12 inches diameter and 3 inches wide on the rim, with acircular opening in the centre of G inches diameter. This cylinder is inclosed on both sides, excepting thecentral opening, and is entirely open all round the rim. The disk is placed vertically on a…
Mechanical engineering · Mechanics · Engineering
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